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Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Google Earth Pro - Google Earth Pro allows you fly anywhere around the earth to view satellite imagery, maps, 3D building, and terrain, from galaxies in outer space to the canyons of the ocean.
OwnTracks - Cross-platform location sharing
Google Earth VR - Walk the earth in VR
Mapple.me - Mapple.me bridges the gap between available time and availability of friends to increase social...
QGIS - QGIS is a desktop geographic information system, or GIS.